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What is the difference between a signal analyzer and a spectrum analyzer?
527频谱分析仪主要用于测量输入信号的幅度与频率的关系。 信号分析仪则是同时测量输入信号在单个频率上的幅度和相位。 如欲了解更多信息，请参阅技术概述《频谱分析仪和信号分析仪》。 ,
View Full VersionHow does a spectrum analyzer work?
一个在时域中看起来非常复杂的信号在频域中表现得却完全不同。 时域测量结果显示的是一个不纯净的正弦波。 如果不进行频域测量，那么我们还是无法知道其二次谐波的来源和频率。 频谱分析可以单独显示频谱分量，从而揭示干扰的来源。 时域提供的信息（如信号脉冲的上升时间和下降时间）固然很重要，但频域使您能够确定信号的谐波内容，如带外发射和失真。 如欲了解更多信息，请阅读此篇博客文章：频谱分析基础知识第 1 部分——什么是频谱分析仪？
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What is an impedance tester?
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